embroidery machine board main card servo driver Detailed Product Descriptionsupply all type dahao computer cards:(1):322 ... ),E9102(power supply card),MCB card,ms-01(stepping motor driver) head card(2):328 series: E600(main card),E721(power ... Card),EF168(sequin controlling card),EF190(upper thread driver card),ms21(stepping motor driver),EF119(Needle position card),E871/E874(coiling signal ...